This mod makes these cars' colors look like NFS Edition cars from NFS Most Wanted 2012 Mobile:
-Buffalo
-Infernus
-Cheetah
-Banshee
-Hotknife
-Turismo
-Sabre
-ZR-350
-Comet
-Blista Compact
-Super GT
-Fortune
-Feltzer
-Bullet
-Windsor
-Uranus
-Jester
-Sultan
-Stratum
-Elegy
-Flash
-Euros
-Club
-Alpha
-Phoenix

Note: For the Hotknife car, to be colored, you should try downloading 'Colored Hotknife' mod by Jur1zz, available at http://www.gtagarage.com/mods/show.php?id=18017
This is for people who were too lazy to use black traffic cheats, as it would stay permanent when you save your game.